County outline
Where Barry County is located
Area breakdown
Land accounts for 98.4% of Barry County’s measured area and water for 1.6%. Its combined area converts to 2,048.2 square kilometers or approximately 506,131 acres.
Green: land · blue: water
| Measurement | Square miles | Square kilometers | Acres |
|---|---|---|---|
| Land | 778.123 | 2,015.329 | 497,998.7 |
| Water | 12.707 | 32.911 | 8,132.5 |
| Total | 790.83 | 2,048.24 | 506,131.2 |
How Barry County compares
By original Census land area, Barry County ranks #15 of 115 in Missouri and #1115 of 3,222 nationally. National rankings include the 50 states, District of Columbia, and Puerto Rico.
Its land area is 1.314 times the Missouri county-equivalent median of 592 square miles. It accounts for 1.1% of the combined county land area in the state.
See the complete Missouri ranking · What counts as a county equivalent?
Population and density of Barry County
The Census Bureau estimates that 36,200 people lived in Barry County on July 1, 2025. That ranks #1,322 of 3,222 county equivalents nationally and #34 of 115 in Missouri. Since the April 1, 2020 estimates base of 34,536, the population has grown by 1,664 (+4.8%), compared with +1.9% for Missouri as a whole.
With 778.1 square miles of land, that is 47 people per square mile (18 per km²), placing Barry County #1,621 nationally for density and #40 in Missouri. The median county equivalent has 47 people per square mile; the Missouri median is 31. Put another way, there are about 14 acres of land per resident.
| July 1 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|
| Estimate | 34,549 | 34,778 | 34,968 | 35,373 | 35,730 | 36,200 |
| Change | — | +229 | +190 | +405 | +357 | +470 |
U.S. Census Bureau, Vintage 2025 population estimates. Estimates are revised each year and are not decennial census counts. Density divides the whole population by the whole county’s land area, so it describes an average, not how settlement is distributed within the county. Population sources and methods.
Cities and towns in Barry County
12 incorporated places lie at least partly in Barry County. Together they are home to 14,581 people (40.3%); the other 21,619 (59.7%) live outside any incorporated place, in unincorporated communities and rural areas.
The largest is Monett city, with 6,568 residents in the county (the city extends into 1 other county). The county seat, Cassville city, has 3,301 residents. Among places with at least 1,000 residents in 2020, Monett city grew fastest since then (+6.9%).
| Incorporated place | Population 2025 | Since 2020 | Land mi² |
|---|---|---|---|
| Monett cityAlso in 1 other county | 6,568 | +6.9% | 8.787 |
| Cassville cityCounty seat | 3,301 | +3.5% | 3.423 |
| Purdy city | 1,062 | +3.2% | 0.643 |
| Seligman city | 951 | +19.3% | 1.244 |
| Exeter city | 765 | +3.8% | 0.736 |
| Wheaton city | 693 | +7.1% | 0.52 |
| Butterfield city | 420 | +8.2% | 0.463 |
| Washburn city | 408 | +4.1% | 0.9 |
| Emerald Beach village | 226 | +10.8% | 0.716 |
| Chain-O-Lakes village | 107 | +2.9% | 0.084 |
| Arrow Point village | 80 | +5.3% | 0.191 |
| Pierce City cityAlso in 1 other county | 0 | — | 1.29 |
Population: U.S. Census Bureau Vintage 2025 subcounty estimates, counting only the part of each place inside Barry County. Land: 2026 Census Gazetteer, for the whole place even where it extends into other counties. How communities are listed.
Metropolitan area
Barry County is not part of any metropolitan or micropolitan statistical area in the Office of Management and Budget’s July 2023 delineation; 1,306 other county equivalents are also outside one. These areas are built around an urban core of at least 10,000 people plus the counties tied to it by commuting, so counties outside them are generally rural.
ZIP codes
18 ZIP Code Tabulation Areas have land in Barry County; 12 of them have most of their land inside the county, and the others mainly cover neighboring areas.
648426487465605656236562465625656336564165647656566565865708657236573465745657476576965772
ZIP Code Tabulation Areas are the Census Bureau’s approximations of USPS ZIP Code service areas, from the 2020 Census relationship files. Lighter codes have less than half of their land in this county. Post-office-box and single-address ZIP Codes have no tabulation area.
Counties bordering Barry County
Barry County shares a land border with 6 county equivalents, including 2 in Arkansas. It has more land than 5 of them. The largest neighbor is Benton County (847.7 mi²) and the smallest is Stone County (463.8 mi²). Together with its neighbors, Barry County forms a block of 4,495.6 mi² of land, of which it holds 17.3%.
| Bordering county equivalent | Land mi² | Size vs. Barry | Compare |
|---|---|---|---|
| Benton CountyArkansas | 847.7 | 1.1× larger | Compare |
| Carroll CountyArkansas | 629.9 | 1.2× smaller | Compare |
| Newton County | 624.8 | 1.2× smaller | Compare |
| Lawrence County | 611.8 | 1.3× smaller | Compare |
| McDonald County | 539.4 | 1.4× smaller | Compare |
| Stone County | 463.8 | 1.7× smaller | Compare |
How big is Barry County compared with U.S. states?
Barry County has less land than any of the 50 states. Rhode Island, the smallest state by land area, has 1,033.9 mi², about 1.3 times as much. Missouri’s county land could hold about 88 areas the size of Barry County.
Another way to picture it: the same land area would fill a square about 27.9 miles (44.9 km) on each side. Real county shapes are rarely square, so this is a scale reference rather than a width or driving distance.
State figures are the sums of each state’s county-equivalent land measurements in the same Census release, so states and counties are compared on the same basis. Published state totals can differ slightly because of rounding. Compare all states · Counties bigger than entire states.
What stands out about Barry County?
Barry County has more land than 2,107 of the other 3,221 county equivalents in the dataset.
A median is the middle county-equivalent measurement, not the average of the largest and smallest. All three bars use the same linear scale. Very small areas may appear as a thin sliver; the labels retain their values.
Does including water change its rank?
Using land plus water places Barry County at #1,205 nationally by total area, 90 places farther from the top than its land rank. Other county equivalents gain more area when their water measurements are included.
Its water share is 1.6%, compared with a national county-equivalent median of 1.2% — 0.4 percentage points higher. This describes the statistical geography’s land/water mix, not flood exposure or developable land.
Closest positions in the national land ranking
These entries sit immediately beside Barry County in the national ranking. They can be in different states and are not necessarily geographic neighbors.
| Land rank | County equivalent | Land mi² | Comparison |
|---|---|---|---|
| #1114 | Onondaga County, New York | 778.4 | Compare |
| #1115 | Barry County, Missouri | 778.1 | This county |
| #1116 | Copiah County, Mississippi | 777.3 | Compare |
Calculated from the same Census release as the area table. Total-area order uses original ALAND + AWATER; water shares and chart labels use published square miles. Calculation details.
Representative coordinates
The Census internal point is 36.699376, -93.834334. It represents a location inside the geography; it is not necessarily the centroid or the address of a courthouse.
Source and precision
U.S. Census Bureau, 2026 Gazetteer Files, Counties. Original ALAND: 2,015,328,972 m²; AWATER: 32,910,381 m². Rankings use ALAND; exact ties use ascending GEOID. Tables preserve Census-published square miles to three decimals, with conversions based on those values.
Common questions
How big is Barry County?
Barry County, Missouri has 778.1 square miles (2,015.3 km²) of land and 12.7 square miles of water, for a total area of 790.8 square miles. It ranks #1115 of 3,222 U.S. county equivalents by land area.
Is Barry County the largest county in Missouri?
No. Barry County ranks #15 of 115 in Missouri by land area. The largest is Texas County, with 1,177.3 square miles of land.
What counties border Barry County?
Barry County shares a land border with Stone County, Lawrence County, McDonald County, Carroll County, Arkansas, Newton County, and Benton County, Arkansas.
What is the population of Barry County?
The Census Bureau estimates Barry County had 36,200 residents on July 1, 2025, ranking #1,322 of 3,222 county equivalents. That is 47 people per square mile of land.
What is the county seat of Barry County?
The county seat of Barry County is Cassville.
What cities and towns are in Barry County?
Barry County has 12 incorporated places. The most populous five are Monett city, Cassville city, Purdy city, Seligman city, and Exeter city; 21,619 residents live outside any incorporated place.
Is Barry County part of a metropolitan area?
No. Barry County is outside every metropolitan and micropolitan statistical area in the July 2023 OMB delineation.
How many ZIP codes are in Barry County?
18 ZIP Code Tabulation Areas have land in Barry County, and 12 of them have most of their land inside the county. Census ZIP Code Tabulation Areas approximate USPS ZIP Code areas.
How does Barry County compare with U.S. states?
It has less land than every state. Rhode Island, the smallest, has 1.3 times as much land.
How many acres of land are in Barry County?
The land measurement converts to approximately 497,999 acres. Including water, total area is approximately 506,131 acres. One square mile equals 640 acres.
Why might another source show a different area?
Check whether it reports land or total area, its Census vintage, and its rounding. Our guide explains how to reconcile county area figures.
Can this establish a property boundary?
No. Statistical measurements and generalized maps do not establish property lines. Consult the relevant local surveying or land-records authority.